If you could eat anything before a big game or race, what would you eat and why? Be sure to tell me what food you would eat, what organic molecules it contains, and why it would help you.

1. Unlike carbohydrates and fats, proteins contain ___. A. NitrogenB. hydrogen C. CarbonD. oxygen 2. The various enzymes in our bodies are ___. A. LipidsB. Proteins C. CarbohydratesD. Nucleotides

 Warm-up  Quiz  Notes  Microscopes  Clean-up  Cool-down

 Father of Microscopy-Anton van Leeuwenhoek-created the single lens microscope or simple microscope  More than one lens = compound microscope

 Power of a microscope = magnification = ocular lens x objective lens  Ex: 10x ocular lens x 10x objective lens = 100x total magnification.  HOW BIG CAN IT GET = magnification  400x total magnification = 40x X ___?  _____ total magnification = 10x X 50

 Field of view = how much can you see?  Small field of view/more detail:  Large field of view/less detail:

 Steps to preparing a slide:  1. Place specimen in middle of slide  2. Add drop of water  3. Place cover slip over specimen  4. Put slide onto stage  5. Secure slide with stage clips

 Types of Microscopes: 1. Light Microscope 2. Electron Microscope a. Transmission Electron Microscope b. Scanning Electron Microscope

 Allows light to pass through the specimen and uses two lenses to form an image  Magnification = 1000x

 Uses beams of electrons to produce images  Magnification = 1000x better than light microscope

 Shines electrons through specimen

 Scans a narrow beam of electrons across the surface (3D)

 1. All organisms are composed of one or more cells.  2. Cells are the basic units of structure and function in living things.  3. New cells are produced from existing cells.

 The biggest thing that helped the development of the Cell Theory was the microscope.

YearScientistContribution 1665Robert Hooke Looked at sections of cork with a microscope and introduced the word “cell” to science 1674 Anton van Leeuwenhoek Observes tiny living organisms in drops of pond water through a simple microscope 1838Matthias SchleidenPlants made of cells 1839Theodor SchwannAnimals made of cells 1855Rudolph Virchow Stated that all living things come from other living things

 There are two types of cells: 1. Prokaryotic 2. Eukaryotic

Prokaryotic  Small  Example: Bacterial cells  Important: First type of cell to exist Eukaryotic  Big  Examples: Plants and Animal cells

 Prokaryotic  Eukaryotic

 Came first 3.5 bya  No nucleus or organelles  Contain: ribosomes, cell membrane, and DNA  DNA found in a single, circular chromosome  Kingdom  Bacteria

 Came from prokaryotic cells  Have a nucleus and organelles  DNA found in the nucleus  Contains 1000x the DNA of prokaryotic cells  Kingdoms  Protista, Fungi, Plantae, Animalia  Organelles are

 Review

 Which type of cell has a nucleus?

 Eukaryotic

 Which type of cell does not have organelles?

 prokaryotic

 If my ocular lens is 10x and my objective lens is 40x, what is my total magnification?

 400x

 All cells come from existing….

 cells

 Cells are the basic units of ___________ and _____________.

 Structure and function

 Which came first, prokaryotic cells or eukaryotic cells?

 Prokaryotic cells

 True or False: Prokaryotic cells have DNA

 TRUE!

1. All living things are made up of ___. A. cellsB. wastes C. corkD. cellulose 2. Which of the following does NOT describe a polymer? A. Polymers are made of monomers. B. Polymers are large molecules. C. Polymers usually form by covalent bonding. D. Polymers are the subunits of monomers.

 Warm-up  Microscope Lab or Book Review ?s  Vocab Review  Clean-up  Cool-down

 List the 3 parts of the Cell Theory.  List 2 similarities and 2 differences between prokaryotes and eukaryotes.

 Warm-up  Prok. vs. Euk. Venn diagram  Cells & Microscope Worksheet  Prokaryotic coloring with questions  Cells: The Basic Unit of Life video with questions  Vocab practice  Clean-up  Cool-down